851140369 has 12 divisors (see below), whose sum is σ = 891878400. Its totient is φ = 812192744.

The previous prime is 851140337. The next prime is 851140399. The reversal of 851140369 is 963041158.

It is not a de Polignac number, because 851140369 - 2⁵ = 851140337 is a prime.

It is a super-2 number, since 2×851140369² = 1448879855482912322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (851140319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251712 + ... + 255070.

It is an arithmetic number, because the mean of its divisors is an integer number (74323200).

Almost surely, 2^851140369 is an apocalyptic number.

It is an amenable number.

851140369 is a deficient number, since it is larger than the sum of its proper divisors (40738031).

851140369 is a wasteful number, since it uses less digits than its factorization.

851140369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 851140369 is about 29174.3100861014. The cubic root of 851140369 is about 947.6916695808.

The spelling of 851140369 in words is "eight hundred fifty-one million, one hundred forty thousand, three hundred sixty-nine".